The Bar-C Mystery is a 1926 American silent Western 10 film serial directed by Robert F. Hill. Chapters: 1. A Heritage of Danger; 2. Perilous Paths; 3. The Midnight Raid; 4. Wheels of Doom; 5. Thundering Hoofs; 6. Against Desperate Odds; 7. Back from the Missing; 8. Fight for a Fortune; 9. The Wolf's Cunning; 10. A Six-Gun Wedding.

A murdering skyjacker parachutes to safety and poses as a novice monk in an isolated New Mexico monastery.

Much-married and once successful writer Henry T. Aythecliff, now heavily in debt, summons his three ex-wives to his mansion, planning to extort a sizable amount of money from each. When he is discovered dead, clues indicate that each of his four wives had motive and opportunity to murder him, and a young detective must sift through some ingeniously devised evidence.

After coming under suspicion for a computer technician's murder, six hackers team up to try to find the real killer.

A doctor who cannot figure out what is wrong with his patient refers him to a detective, whom he hopes will be able to discern the cause of his mysterious illness.

Wife of wealthy ladies' man Challis Wrandall, Sara, is called to a roadhouse to identify her husband's body and told that he was murdered by an unidentified woman. On her way home, Sara rescues a young woman who is about to drown herself. Believing the woman, Hetty Castleton, to be the murderer, Sara offers her employment in the Wrandall home as her companion. Because her husband and his family treated her so coldly during her married life, Sara seeks revenge by arranging a romance between her brother-in-law Leslie and Hetty, but the latter has fallen in love with artist Brandon Booth and refuses to marry young Wrandall. Sara threatens to expose the girl, but just then a detective appears and accuses Sara of the crime. Hetty confesses, explaining to the family that Challis had lured her to the inn and attacked her. The Wrandalls forgive her, and she leaves her home in Booth's company.

Having been rejected by Phyllis Leigh in favor of wealthier suitor Peter Lester, Hugh prevents Elinor Ashe from drowning herself. Hugh recklessly marries Elinor, but they occupy different wings of his house. Lester and Phyllis arrive as guests, and a new manservant favored by Elinor is hired. When Lester is murdered, the servant is charged with the crime, and Elinor admits to Hugh that he is indeed her father, recently released from prison. While in the company of Marcia Marshall, Hugh discovers her husband Harley dying in a Chinese opium den. He confesses that, victimized by Lester, he killed him. Elinor's father is released, and she reconciles with Hugh.

Holmes goes on the trail of a Rembrandt painting, stolen by a drug-addicted artist.

Sherlock Holmes solves a murder rooted in the Mormon trek of 1850.

An operator at a mobile pager company has her life turned upside down by a seemingly senseless abduction. Currently considered to be a lost film (never released to the general public, after its theatrical premiere in Puerto Rico).

Feature version of the 1945 American serial film of the same name, composed for export only, never seen in the USA and now evidently a long-lost film.

In Dijon, Inspector Hanaud investigates Betty Harlowe after her uncle, Boris Waberski, accuses her of poisoning her wealthy aunt for an inheritance. While an initial autopsy finds nothing, Hanaud discovers the use of Strophanthus Hispidus—a rare, undetectable poison applied via an antique arrow. Amidst a flurry of "poison pen" letters and deception, Hanaud proves the murder occurred despite the lack of conventional medical evidence.